Re: [exim] interessting misconfiguration @PayPal.com

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Author: Evgeniy Berdnikov
Date:  
To: exim-users
Subject: Re: [exim] interessting misconfiguration @PayPal.com
On Sun, Mar 11, 2018 at 02:10:26PM +0100, Cyborg via Exim-users wrote:
> paypal seems to have a "small" problem to maintain it's servers with the
> same patch level:
>
> 2018-03-11 13:47:14 1ev0Nd-0006bI-Ss <= service@???
> H=mx0.slc.paypal.com (mx2.slc.paypal.com) [173.0.84.225] P=esmtps
> X=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=no S=39287
> id=1520772431.8210@???
>
> 2018-03-11 13:48:02 1ev0OO-0006e9-4U <= service@???
> H=mx1.slc.paypal.com (mx2.slc.paypal.com) [173.0.84.226] P=esmtps
> X=TLSv1:DHE-RSA-AES256-SHA:256 CV=no S=41659 id=1520772477.30184@???
>
>
> Those two messages arrived on the same server system, so our part of the
> connection was the same. There is no reason to have on connection TLS 1
> and the other TLS 1.2 without a misconfiguration at paypal's
> maiservercluster.


Maybe this is not a mistake, but a planned testing procedure on several
relay hosts, running before global configuration change for production.
--
Eugene Berdnikov